Pseudo ground line voltage regulator

Details Pseudo ground line voltage regulator Pseudo ground line voltage regulator

1995-09-08

1997-04-08

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327543, 327 80, 323315, G05F 110

Patent

active

056191642

ABSTRACT:
An MOS transistor 3 conducts when a potential of a pseudo GND line 33 exceeds a threshold Vth3 of MOS transistor 3. A current mirror circuit CM1 supplies a current Ib which is .alpha. times a current Ia flowing through MOS transistor 3. A current mirror CM2 lets a current Ib according to the output current Ib from the current mirror circuit CM1 flow out from the pseudo GND line 33 to a ground line 32. Without providing a separate reference potential generating circuit 35, the potential of the pseudo GND line 33 can be maintained to a constant value.

REFERENCES:
patent: 4399399 (1983-08-01), Joseph
patent: 5087891 (1992-02-01), Cytera
patent: 5245273 (1993-08-01), Greaves et al.
patent: 5481179 (1996-01-01), Keeth
patent: 5521490 (1996-05-01), Manohar

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